Push-button latch.



A. B. GRUBER.

PUSH aunou LATCH.

APPLICATION FILED FEB. 7, 1918.

1,270,288. v Patented June 25,1918.

2 SHEETS-SHEET i.

June/Mm A. B. GRUBER.

PUSH BUTTON LATCH.

APPLICATION FILED FEB-7119181 1,Q7@,888@ Patented June 25, 1918.

2 SHEETS-SHEET 2.

\ amwwtoz UNITED STATES PATENT OFFICE.

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ruse-nor Specification of Letters Patent.

TON Lemon.

Application filed February 7, 1918. Serial No. 215,809.

To an 'w/wmz'v may concern:

Be it known that I, ARGHIBALD B. GRUBER, a citizen of the United States, residing at San Bcrnardino, in the county of San Bernardino and State of California, have invented certain new and useful Improvements '1 in Push-Button Latches; and I do declare thefollowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in push button latches generally improve upon devices of this nature by the provision of an extremely simple,

inexpensive and .durable construction, one which will be efiicient and reliable in operation, and well adapted to the purposes for which it is designed.

With these and other objects -in view, the invention consists of certain novel features of construction, and-the combination and er, rangement of parts aS will be hereinafte fully described and claimed In the accompanying drawings forming a part of the application, and in which similar reference characters designate like parts throughout the several views;

Y the line 4-4 of Fig. 3;

Figure 1 is a perspective view of an automobile door equipped with a latch constructed in accordance with this invention;

Fig. 2 is an enlarged vertical sectional view of the door and latch;

Fig. 3 is a horizontal sectional view taken on the line 33 of Fig. 2; v

Fi 4 is a. vertical sectional view taken on Fig 5 is a view similar to' Fig. 1 but showlng a different form of the-invention;

Patented an. 25, 1918.

'Fig. 6 is a horizontal section of Fig. 5; V

, and

' Fi .67 'isa perspective of the bolt of The invention is designed primaril for use on automobile doors, andxin the rawings such a door is represented by the letter A, although it will be clear that the device may be usedhonzontally upoh otherv doors,

drawers, and various otherclosuresn The door A of Figs. 1, 2 and 3 is provided with from the. outermost vertical sidevedg of mortises 6 ends, the mortise blezgtenging the door at right angles to this edge to a point spaced a small distance fromfthe same.

The mortise 0 extends" atright angles to the mortise b and the upper edge of the-door, and from said upper etigeto the innerend of the mortise b. The mortise b is preferably of square-shaped ,configuration'in cross section, while the mortise 0 18 preferably circular in cross section. 4 D1sposed within the mortise b is a hollow casing 1, the latter lilting bent or stamped from a single sheet of metal and having an opening 2 1n one side thereof disposed adjacent the inner end Ofjth mortise 0 although this side of the casing might be' left entirely closed in some-cases. If desired, the casing 1 may be provided with a back wall 3, which may-be formed integrally. with the casing as ;wing extending laterally from one side thereof. Secured to the vertical side edgeof the door A is an escutcheon plate 4, serving to give this ed of the door a rather ne t appearance. Th s.

plate 4 is provided witha centrally disposed opening 5.- -Slidable within the casing 1 is a reversible latch bolt 6, the latter having a longitudinally extendin vertical slot 7' therein and having notc es-8 in its upper and lower sides. ,These notches. serve to form a shoulder Don the inner end and'a shoulder E on the outer end of bolt 6 for a purpose to beset forth. The'forward end of the bolt 6 is beveled for an obvious p'urpose. Therear wall of notch 7 is beveled from opposite sides as at 9. Dis osed within the rear end of the casing 1 an having one end bearing against theendf wall 3 of thesame and itsiothe'r end pushing against the rear end of the latch bolt'fi is a coiled spring 10, the purpose of which. is obviously tonormally hold the'bolt in projected position.

The reference numeral 11 designatesatube I which is disposed in the vertical mortise c. The. lower-end of this tube 11 is reduced in diamante at 12, and this reduced portion extends through the opening 2 in the casing l, and into the uppermost notchS in the bolt 6. The shoulders 'D' andE coact with thisend'of-the'tub to limit the inward and-outward movement of the bolt. However, it is v{only necessary for the outward movement ofthe-bolt t'o be limited. The upper end of ,the tube 11 is disposed adjacent the 'upper edgeof thedo'or A and; is ngaged by-a plate l t which'is'secured' to this edge of the door, The tube- 11 is thus prevented from shifting longitudinally within'the mortise '0. The end 12 oil-the tube 11' not only serves to coact withfshoulders" -Dand l*1",1,b1 1tv prevents re-. .lnoval-of the casing 1 from mortise I) evenithough-plate 4 be eliminated,

Slidable within the tube 11 is'a plunger. 15..- The lower end of this plunger 15 is:

beveled-and projectsinto the slot 7 in the .bolt- 6 to engage 'tlie'nppermost beveled por-. tion" of the remand wall of. said slot so,

that-when the plunger is pushed downwardly the bolt-w-illbe' retracted. The upper end of the-plungerdfi is'provided with an interk. pally. threaded socket to receive thethreaded stem 16 of 'a knob 17, the stem extending through anopening in the'plate 14. so that the knob isdisposedat the upper. edge ofthe doori- -T-h'e plate 14 limits the upward.

movement of' 'the plunge'rfh'). If desirable and necessary, one or more'w-ashers 18 may be placed'upon' the stem 16 between the lower side of the plate Mjand the upper end of the plunger 15.

In operating the latch-it is only necessary to depress the plunger by'pushing downwardly upon-tho ltnob"17. When' pressureis released "flOHltllQ knob the bolt spring will project the bolt and in doing 'so the plunger land knph' will be raised to. their uppeiim'ostpcsitioni It is :very desirable to use alatc'h' oPthisbfinsttuction in connection with automobile doors where the operatingmember of the latch' is disposed at thel-upper"-edge of the door Where access to it may'beieasil'y had from either .the -i n-' either eases the door, or possibly with two of the bores 0 opening through both sides of said door. Only one bore c however is shown for illustrative purposes. The casing .it is carried. v As numerous changes in form, ,PIOPOI;

l' is substantially the same as casing 1 but 1s provided with no inner end 1n most cases although such anend might be added. The

outer end of the casing in question abuts a plate 4: and is provided in one side with an opening 2' corresponding to the opening :2. The bolt 6 is slidable in casing 1' and is provided with a longitudinal slot 7' and 4 with notches 8 whose ends form shoulders D and E forcoaetion with the inner end of a tubular plunger guide lllocated in the-bore c and threaded into the opening 2. The 'i'nn'erend wallo'f the slot 7' is 0ppo sitely. beveled at 9 for engagement by the beveled inner end. of :u plunger 15" which is slidable in the guide 11' the outer end of the latter being turned'inwardly at 14 to limitthe outward movement of the plunger. This plunger is normally forced outwardly by the bolt 6- which is projected by the spring 10. The plunger 15 is pro- ;vided with a stem 16 projecting beyond the guidell' and provided with a cylindrical push button 17 slidable in the/bore 0' which is much'larger than the guide 11';

the. innerend of said button having a socket '17 to -'receive the pushed inwardly. 1 n escutcheon plate 14" uide as said button is is preferably. secured to the door and pro- .vided witli an opening through whichthe button '17- slides.

i The operation and functions ofthe parts just'described are identical, with those of corresponding parts herein specifically de-.- scribed in reference to Figs. 1 to 4: and further explanation is therefore unnecessary,-

except that I may state that the latch may be used on any and all objects to be locked and that by duplicating the parts 11; 15', .16, and 17', the latch may be made to operate from both sides of the objectby which tion, and in the minor details of construction may be resopted .to without departing from the spirit of this invention, 1t is to be understood that I do not wish-to be .limited to the construction herein shown and described, other than as claimed.

'1 claim:

' .1l5 1. A push button latch comprising ahollow casing having one side totally or per tially closed, a latch belt slidable longitu dinally in said casing and havin a longitudinal slot, the rear end wall 0 said s 0t being beveled, said bolt having a. notch adjacent said side, the ends ofsaid notch form ingshoulders, a coiled spring for said bolt 'to normally hold the same projected, a tube ,extending at right angles to said casing and haying one end projecting through the aforesaid side thereof and into said notch to provide a stop coacting with one of said shoulders for limiting the movement of said bolt, and an operating plunger slidable emme in said tube and having its inner end beveled and extending into the slot of said bolt into engagement with the beveled rear Wall of'said slot. f

2. A push button latch comprising a easing having one side totally or partially closed, a latch bolt slida'ole longitudinally in said easing and havin a longitudinal slot, the rear Wall of said s ol; hein beveled 9 at both sides of the bolt, said bolt iaving a notch in each side adjacent said slot, the ends of said notches forming shoulders, a eoiled spring for said bolt to normally hold the same projected, a tube at an angle to 5 said casing, said tube having its inner end prmectmg through theaioresaid side 01 said easing and into the noteh of said bolt to provide a stop for, eoaetion with said shoulders to limit the movement of the bolt, an

29 operating plunger slidable in said tube and having its inner end beveled and extending into the slot of said oolt into engagement with the beveled rear Wall'thereof, and a 3. A latch comprising a 'casing having therein e sliding latch bolt, a tubular guide extending laterally from said casing and having its outer end turned inwardly, a

plunger slidahle in said guide for operating said bolt, outward movement of said plunger being limited by said intu'rned outer end of said guide, a stem extending from the outer end of said plunger beyond said guide, and a push button on the outer end of said sLem having a socket in its inner end in which said guide is receivable when said button is pushed inwardly to operate said plunger.

In testimony whereof I have hereunto set 'my hand in the presence of two subscribing witnesses.

ARCHIBALD B. GRUBER. Witnesses:

LOUIS G. Movers, Gnome J. DAVIS. 

